# gás
## Faroese
### Etymology

From Old Norse gás, from Proto-Germanic *gans, from Proto-Indo-European *ǵʰans-. Cognates include Old English gōs (English goose), Old Frisian gōs (West Frisian goes), Old Saxon gōs, gās (German Low German Goos), Dutch gans, Old High German gans (German Gans), Portuguese ganso, Spanish ganso.

### Pronunciation

* IPA: /kɔɑːs/

### Noun

gás f (genitive singular gásar, plural gæs)
* goose (Anser)

#### Related terms

* storkur
* svanur
* dunna

## Irish
### Alternative forms

* geas

### Etymology

From Dutch gas, a word coined by chemist Van Helmont. Perhaps inspired by Dutch geest (“breath, vapour, spirit”) or from Ancient Greek χάος (kháos, “chasm, void”).

### Noun

gás m (genitive singular gáis, nominative plural gáis)
* gas
* paraffin oil

#### Declension

bare forms
case
singular
plural
nominative
gás
gáis
vocative
a gháis
a ghása
genitive
gáis
gás
dative
gás
gáis
forms with the definite article
case
singular
plural
nominative
an gás
na gáis
genitive
an gháis
na ngás
dative
leis an ngás don ghás
leis na gáis :

#### Derived terms

* cochall gáis (“gas mantle”)
* fear an gháis (“gasman”)
* gás guail (“coal-gas”)
* gás nádúrtha (“natural gas”)
* gás portaigh (“marsh gas”)
* gás támh (“inert gas”)
* gásach (“gaseous; gassy”, adjective)
* gásaigh (“gas”, verb)
* gásdíonach (“gas-proof”, adjective)
* gásdóire (“gas burner”)
* gásfháinne (“gas ring”)
* gásghineadóir (“gas generator”)
* gáslampa (“gas lamp”)
* gáslíonta (“gas-filled”, adjective)
* gásmhéadar (“gas meter”)
* gásoigheann (“gas oven”)
* gásphíopa (“gas pipe”)
* gásphúicín (“gas mask”)
* gásumar (“pneumatic trough”)
* inneall gáis (“gas-engine”)
* méadar gáis (“gas meter”)
* píopa gáis (“gas pipe”)
* príomhphíopa gáis (“gas-main”)
* solas gáis (“gaslight”)
* teoiric chinéiteach na ngás (“kinetic theory of gases”)
* tine gháis (“gas fire”)

### Mutation

Note: Certain mutated forms of some words can never occur in standard Modern Irish. All possible mutated forms are displayed for convenience.

### Further reading

* Ó Dónaill, Niall (1977) “gás”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
* “gas”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2025

## Old Norse
### Etymology

From Proto-Germanic *gans, from Proto-Indo-European *ǵʰans-. Cognates include Old English gōs (English goose), Old Frisian gōs (West Frisian goes), Old Saxon gōs, gās (German Low German Goos), Dutch gans, Old High German gans (German Gans), Portuguese ganso, Spanish ganso.

### Pronunciation

* (12th century Icelandic) IPA: /ɡɒ̃ːs/

### Noun

gás f (genitive gásar, plural gæss)
* goose
* vulva

#### Descendants

* Icelandic: gás, ⇒ gæs (analogously after plural gæss)
* Faroese: gás
* Norwegian Nynorsk: gås
* Elfdalian: gą̊s
* Old Swedish: gās, ᚵᛆᛋ
** Swedish: gås
* Old Danish: gās
** Danish: gås
*** Norwegian Bokmål: gås
** Scanian: gás
* Gutnish: gas

## Portuguese
### Etymology

Borrowed from French gaz, from Dutch gas, from Latin chaos, from Ancient Greek χάος (kháos).

### Pronunciation

* (Brazil) IPA: /ˈɡa(j)s/ [ˈɡa(ɪ̯)s]
* (Brazil) IPA: /ˈɡa(j)s/ [ˈɡa(ɪ̯)s]
** (Rio de Janeiro) IPA: /ˈɡa(j)ʃ/ [ˈɡa(ɪ̯)ʃ]
* (Portugal) IPA: /ˈɡaʃ/
* Hyphenation: gás

### Noun

gás m (plural gases)
* gas
* (in the plural) fart

### References

* ↑ “gás”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025
* ↑ “gás”, in Dicionário infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2025